On Tue, Sep 15, 2020 at 04:38:02PM +0200, Mark Wielaard wrote: > Hi Josh, > > On Tue, 2020-09-15 at 09:17 -0500, Josh Poimboeuf wrote: > > On Tue, Sep 15, 2020 at 01:24:17PM +0200, Mark Wielaard wrote: > > > But all this is for ancient versions of elfutils libelf. So it is hard > > > to say and my memory might be failing. If someone can confirm 0.158 > > > (which is 6 years old) works fine I would pick that as minimum version, > > > otherwise simply go with 0.168 which is 4 years old and should be on > > > most systems by now. > > > > I just discovered elf_version(), I assume that would allow us to check > > and enforce the libelf version? > > No, sorry. That is for the ELF file format version, which is and has > always been version 1 (and I suspect it will be for the next 20 > years).
Oh, right :-) > There is /usr/include/elfutils/version.h which provides a > _ELFUTILS_PREREQ(major, minor) macro if you need something during > compile time. Nice, I'll try that. > Note that in theory libelf is a generic library (there are variants for > Solaris and BSD with which we try to be [source] compatible), but the > only actively maintained version is the elfutils one. Yeah, we've occasionally had users using another variant of the library which is 10+ years old. Not surprisingly it didn't work well. -- Josh
